Improved ore-washer



G. B. HAMILTON.'

Y Ure Washer. Y No. 53,221. Patented March 13, 1866.

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VUNITED STATES PATENT OFFICE.

GEORGE B. HAMILTON, OF I/VASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TOHIMSELF AND ANDREW NOERR, OF SAME PLACE.

IMPROVED ORE-WASHER.

Specification forming part of Letters Patent No. 53,221, dated MarchlS,1866.

To all 'whom it may concern: Be it known that I, GEORGE B. HAMILTON ofWashington, in the county of Washington and District of Columbia, haveinvented a new and useful Improvement in Ore-Washers and I do'herebydeclare that the followingis a-full and exact description thereof,reference being had to the accompanying drawings, and to the letters ofreference marked thereon.

My invention consists in a peculiar construction and arrangement ofmachine for washing ore.

In the accompanying drawings, Figure l is a vertical section near thecenter ofmy machine. Fig. 2 is an end View of the machine.

Upon any suitable frame, A, Fig. 1, I arrange a semicircular trough `orcistern, B, with one end higher than theother. In this cistern is placeda hollow cylinder or washer, C, provided with ribs or ylifters D, setobliquely, as indicated in dotted lines, Fig. 2, at D. The cistern ortrough Bis furnished with a constant stream or supply of water, and" thecylinder or agitator C is set in revolution by the crank E, orothersuitable means. The ore is shoveled into Ythe cylinder C from theplatform F. As the cylinder revolves water is dipped up by the trunks Gand iows into cylinder at holes G', Fig. l. As soon as the water risesto the red line, Fig. l, there is a constant overflow at theleft-handend of the cylinder, as indicated by the arrow, while a continuoussupply of water is dipped'up by the trunks G. As the water thus liowsfrom the right to the left, washing away the dirt, the ore slowly passesto the right on account of the oblique position of the cylinder, and atthe same time the lifters D seize the ore and carry it up the -side ofthe revolving cylinder to fall back again into the Water. Thus the oreis thoroughly agitated and washed vand finally collected at theright-hand or lower end of the cylinder, where a portionYV of the sameis taken up at each revolution of the cylinder by the discharger O andcarried into the oblique passage I, froin which it falls upon the sieveK.

A portion of water being carried forward with each discharge of orewashes the tiner particles through the sieve to be collected and set-`tle in a reservoir below.

I propose to employ several sieves, if necesesa-ry, the same beingshaken by trips L striking` the lever M in the usual manner.

I do not confine myself1 to the proportions above set forth; but Ipropose to vary the dimensions and details of construction, usingsubstantially the same machine.

Havin g thus fully described my invention, Y what I claim, and desire tosecure by Letters- G'Eo. B. HAMILTON.

Witnesses:

DANIEL BREED, E. H. BA'IEs.

